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Apparatus and method for minimizing waste and improving quality and production in web processing operations by automatic narrow web twist defect correction

a technology of web processing and automatic narrow web twisting, applied in the direction of transportation and packaging, television systems, textile treatment untwisting devices, etc., can solve the problems of inconvenient harvesting of recyclable materials from defective products, inconvenient operation, waste, etc., to improve quality and production, the effect of minimizing was

Inactive Publication Date: 2013-03-14
CURT G JOA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent text describes a method and apparatus for minimizing waste and improving quality and production in web processing operations. The techniques taught in the patent can be used in any web-based operation, not just diapers. It can help reduce waste by avoiding things like staple and elastic band waste during manufacture of face masks, or by identifying and removing defective components from products. This can save money and improve efficiency, as well as prevent waste from being applied to defective products. The method is not specific to any particular product, and can be used with different manufacturing processes. Overall, the patent helps improve manufacturing efficiency and reduce waste.

Problems solved by technology

SAP is generally excellent at liquid storage, but because SAP turns to a gelatinous type material, does not distribute liquid well.
As in many manufacturing operations, waste minimization is a goal in web processing applications, as products having spliced raw materials cannot be sold to consumers.
Indeed, due to the rate at which web processing machines run, even minimal waste can cause inefficiencies of scale.
However, the act of harvesting recyclable materials from defective product is intensive.
If the narrow webs become twisted, the twist often persists in the form of an undesirable overlap of material.
This often has required operators to undesirably stop the machine and manually remove the twist from the web.

Method used

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  • Apparatus and method for minimizing waste and improving quality and production in web processing operations by automatic narrow web twist defect correction

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Embodiment Construction

[0047]Although the disclosure hereof is detailed and exact to enable those skilled in the art to practice the invention, the physical embodiments herein disclosed merely exemplify the invention which may be embodied in other specific structures. While the preferred embodiment has been described, the details may be changed without departing from the invention, which is defined by the claims.

[0048]It is noted that the present waste minimization techniques and apparatus are described herein with respect to products such as diapers, but as previously mentioned, can be applied to a wide variety of processes in which discrete components are applied sequentially.

[0049]Referring now to FIG. 1A, a perspective view of a web processing system 10 of the present invention is shown, carrying a web 12 (such as an acquisition layer) in a properly oriented condition. In its properly oriented condition, side 16 is visible from the top, side 14 is visible from the bottom.

[0050]As seen on FIG. 1A, at v...

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Abstract

Apparatus and methods are provided to minimize waste and improve quality and production in web processing operations. The apparatus and methods provide defect detection in deposition of acquisition material, which on current machines frequently flips and is difficult to detect when it has flipped causing manufacturers to scrap thousands of products. Using the present invention, defects are able to be detected by discerning a difference in the appearance from side to side with a vision camera, and an acquisition inverter can flip the material to a correct orientation.

Description

RELATED APPLICATION[0001]This application claims the benefit of co-pending U.S. Provisional Patent Application Serial No. 61 / 450,990, filed 9 Mar. 2011.BACKGROUND OF THE INVENTION[0002]The invention disclosed herein relates to apparatus and methods for waste reduction and improvements to the quality and production in web processing operations, such as diaper manufacturing. While the description provided relates to diaper manufacturing, the apparatus and method are easily adaptable to other applications.[0003]Generally, diapers comprise an absorbent insert or patch and a chassis, which, when the diaper is worn, supports the insert proximate a wearer's body. Additionally, diapers may include other various patches, such as tape tab patches, reusable fasteners and the like. The raw materials used in forming a representative insert are typically cellulose pulp, tissue paper, poly, nonwoven web, acquisition, and elastic, although application specific materials are sometimes utilized. Usua...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04N7/18
CPCA61F13/15772B65H23/00D06B23/08B65H2553/42B65H2801/57B65H2301/33224
Inventor DENOBLE, ADAM D.BROWN, JEFFREY DALEANDREWS, ROBERT E.HOHM, GOTTFRIED JASONFAUCHER, DENNIS J.
Owner CURT G JOA
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